I'm having some problems with my internet since i upgraded to Win 7 the other day. Basically it works like a charm, except every once a while the connection cuts off, so i do a Windows diagnostic and that gets it fixed. The diagnostic page says "No Default Gateway Found". I have to do this process once or twice a day and it is a little annoying. I am not very knowledgeable in router configurations and the likes, so to me this problem is befuddling.
I have a Comcast provider with a Netgear router. Router model is WGT624 v3.